package lesson5;

public class Demo1 {
    public static void main(String[] args) {
        //byte  1个字节 8位   -128      --          127
        //                 11111111    10000000   0000000         01111111

        byte b1 = -127;  //11111111    10000000    10000001
        byte b2 = -1;    //10000001    11111110    11111111     10000000
        System.out.println(b1+b2);
    }
}
